April 23, 2021 In 2010, the Japanese government had a rude wakeup call: Beijing had abruptly cut off all rare earth exports to Japan over a fishing trawler dispute. Tokyo was almost entirely dependent on China for the critical metals, and the embargo exposed this acute vulnerability. The silver lining to this incident, which sent global rare earth prices skyrocketing before they crashed down as the speculative bubble popped, is that it forced Japan to rethink its critical raw materials policy. A decade on, it has significantly reduced its dependance on China for rare earths, and continues to diversify its supply chain by investing in projects around the world. Its model may have lessons for the US, which desperately wants to break China’s rare earths monopoly. Rare earths are a group of 17 metals that are crucial in the manufacturing of high-tech products.